Question No post after enable DOCP - Problem with (technically) overclocking

[thece]

Hello,

The thing I am trying to do is technically overclock, but it is not really...
My setup is

• ASUS TUF B450-Plus Gaming
• Corsair CMK32GX4M2B3200C16
• Ryzen 7 2700X
• ASUS RTX 2060 (not that it matters)

So, for some time now RAM runs at 2133 MHz, which is way below 3200 MHz spec that both RAM and motherboard supports. Since I had some free time, I tried to fix that by first enabling the DOCP in bios. The new target frequency was 3200 MHz and 1.35 V, but after reboot the computer wouldn't post. I also tried to increase the voltage at 1.375 V, but this time the crush was so bad I had to hard reset the BIOS. Then I though that all this might be CPU's fault, and as AMD's site states, the 2700X supports System Memory Specification Up to 2933MT/s.

So, my question is: Do I understand this correctly? Is the CPU that creates the problem and I cannot bring RAM up to 3200 MHz, which is designed for? Is there any benefit to ignore DOCP preset, and increase manually the frequency up to 2800 MHz and 1.35 V?

Thanks a lot!

 

[Lutfij]

What BIOS version are you on for your motherboard?

 

[SkyNetRising]

Is there any benefit to ignore DOCP preset, and increase manually the frequency up to 2800 MHz and 1.35 V?

2933mhz should be achievable.
Anything above it is overclocking and is not guarantied.

 

[drea.drechsler]

Hello,

The thing I am trying to do is technically overclock, but it is not really...
My setup is

• ASUS TUF B450-Plus Gaming
• Corsair CMK32GX4M2B3200C16
• Ryzen 7 2700X
• ASUS RTX 2060 (not that it matters)

So, for some time now RAM runs at 2133 MHz, which is way below 3200 MHz spec that both RAM and motherboard supports. Since I had some free time, I tried to fix that by first enabling the DOCP in bios. The new target frequency was 3200 MHz and 1.35 V, but after reboot the computer wouldn't post. I also tried to increase the voltage at 1.375 V, but this time the crush was so bad I had to hard reset the BIOS. Then I though that all this might be CPU's fault, and as AMD's site states, the 2700X supports System Memory Specification Up to 2933MT/s.

So, my question is: Do I understand this correctly? Is the CPU that creates the problem and I cannot bring RAM up to 3200 MHz, which is designed for? Is there any benefit to ignore DOCP preset, and increase manually the frequency up to 2800 MHz and 1.35 V?

Thanks a lot!

3200 is greater than the CPU officially supports so just setting XMP is going to be real "iffy" that it boots at that clock. Many people have gotten 2700X's to run with 3200 memory but it quite often requires manual adjustments to timings and/or DRAM voltage, not just setting XMP.

What you can do is set XMP but manually set the clock to 2933, the max clock your CPU is officially rated at. 2933 should make a noticeable improvement from 2133, especially in memory intensive applications, while 3200 is but a minor uplift from 2933.

 

[thece]

What BIOS version are you on for your motherboard?

I updated bios version to 4202, the latest one. I tried to applied DOCP with the previous and the newest version. It didn't make a difference.

2933mhz should be achievable.
Anything above it is overclocking and is not guarantied.

3200 is greater than the CPU officially supports so just setting XMP is going to be real "iffy" that it boots at that clock. Many people have gotten 2700X's to run with 3200 memory but it quite often requires manual adjustments to timings and/or DRAM voltage, not just setting XMP.

What you can do is set XMP but manually set the clock to 2933, the max clock your CPU is officially rated at. 2933 should make a noticeable improvement from 2133, especially in memory intensive applications, while 3200 is but a minor uplift from 2933.

Yes, I should try to overclock at the highest frequency the CPU supports. I just wanted to be sure that it is possible and it will make a difference. I don't believe that it is worth the extra energy to go up to 3200 MHz.

Do you have any opinion on the voltage? 1.35 V is ok?

Thank you all!

 

[SkyNetRising]

Do you have any opinion on the voltage? 1.35 V is ok?

1.35V is standard OC voltage for DDR4.
I wouldn't suggest going any higher in voltage though.

 

[drea.drechsler]

....

Do you have any opinion on the voltage? 1.35 V is ok?

Thank you all!

What voltage is listed on the memory packaging label? it might also be indicated on a label on the stick itself. I'd start with that.

 

[thece]

Just an update. As it seems, 2933 MHz/1.35V is stable.

https://imgur.com/a/ebranZ9

 

[Misgar]

I got an old 2600X to boot faster than 2933MT/s with DDR4-3000 RAM by the simple expedient of setting DOCP to 3000MT/s, then manually relaxing the CL (CAS) timing by two clock cycles.

In the case of your DDR4-3200 RAM clocked at 1600MHz in the screen shot above, try changing the value from CL16 to CL18 for each DIMM.

Leave the XMP voltage at 1.35V. Higher DDR4 voltages, e.g. above 1.5V may eventually cause electromigration damage.